Means for regrooving spindle whorls



July 31 1934- w. c. STEWART MEANS FOR REGROOVING' SPINDLE WHORLS FiledDec. 25, 1933 5 sheets-sheet WHLTER C STEWART www July 31 1934- w. c.STEWART 1,968,721

MEANS FOR REGROOVING SPINDLE WHORLS u Filed Deo. 23, 1933 3 Sheets-Sheet2 WALTERC 5TEwn/2T gmc/whom July 31, 1934. w. c. STEWART MEANS FORREGROOVING SFINDLE WHORLS Filed DeG. 25, 1953 5 Sheets-Sheet 3 PatentedJuly 31, 1934 MEANSV FR 'REGRING l'SPINDLE WHORLS .Walter Stewart,r-Gafstonia, N. (l. Application-December 23,1933, serial Nanterre :.2l(llaims. (SCI. 82-;6)

numeral .10 :indicates -a base plate iliaving 'up- .fstanding webmembers-11 andi-Zat one end and a web or upstanding projection 13 (near the,other end, webs 11 and V12 being .integral with Yeach other. fAt the=upper end of web 11 -a bearing 114 lis provided rin which is :rotatablymounted -a hol- :low fshat 15 having :secured 1on one :end thereofdriving means such -as -ajpulley 16 andsiidably 'mounted within themember :1 5 .isa Ytubular meinfber i147 fnormally pressed lto the left4in Figures Il :and v'5 by means of .anompression spring :13.

The right-hand end of `lmember :15,.fasseen lin Iligure 5, fhas atapered `bore `against which 'the slightly rtapered portion 19 of thespindle .fis adapted 7to .-iit .and whereby :the .spindle is fgivenrotary :motion when the member `15 11's rotated. The tubular member 157is 'adapted :to receive :the upper portionfof the spindle, fand theright-fhand end thereoifasseeniniEiguresjl and 5, isadapted tofengagethe portion 20 :of Lthe spindle .toeject .the :same from -`.the.fholding :means :15.

@n 'the vupper rend :of web fl-1 :an `.enlarged por- ,tinn 25 `is:providedfin which .'a. shaft `2,6 '.-is frced vby any :suitable means'such z-as :a 1key12'7.

.Theauppertend oprojeotion l3lhas;an enlargement .-28 :thereon `.whichsupports shaft .26. The right-*handendfof shaft;-26,zin Figuresi1 and2,.has rotatably' mounted lthereona. swingngimember 29, Whichisiloeselyconnedfon shafti26 by .washer 30, and screwl embedded `in fthe .endofshaft .26. Member '29 1.has :slidably mounted therein a `holder 32 which.is apreven'ted from .having .turning movement 1in member 29 :by means`of .Ya .set `screw 33 loosely engaging fone of `a :plurality of*longitudinallyLdisposed grooves 34 :in :member 32. Member 32 :is.zmounted between .portions '35 land 36 of member 29 .and has aspiralthreador screw37 therein fand rotatably'mounted .on shaft V32 is acollarl38 having a Apin39 therein which-engages the screw or thread 37so that when rotary movement iis imparted to member 38, Lby .means Iof ahandle 40, the .shaft 132 will l:be moved ilongitudinally to the rightor the left in Figure l, depend- .'sIfhs 4.invention frelates to ,fmeans1for .regrooving worn whorls :on spindles :whereby the sidewalls ,ofVthe `N/-grooves vin :the `vvhorl -are -cut `away to .form ..algrooveYin lthe -Whorl which, to .all intents .and purposes, serves lthe ,samepurposes fas -neW .spindles :having vnew .whorls .thereon IIt is fanVobjectof this invention to provide a machine -for regrooving whorls fon:spindles wherein lthe spindle -fcan .'bejheld 'in Athe imachine .andsubjected to ya. Aplurality vof successive operations Vto `aline andiregroove the `.whorl on the spindle without the necessity of anyadjustment ybetween the successive operations.

'It another `objectief ;the:inventionwto provide .means `:forlregrooving `whorls 'on spindles comfprising gmeans `for :holding thespindle and roftating 'the :same in :a .fixed :position awhile 1.aanovable member ;having .a plurality nf tools therein is presented tothe whorl to cause the tools :to successively operate on the whorl toaline the same, to :out the faces-"of the fgroove lin ith'e uwhorl.andto nish 'the base andsidewallsnf sthewhorl.

:It :is evident that .when Vspindle fwhorls 4.become 'wornthat agrooveis formed .in lth'e base thereof which renders them unsatisfactory tfor@use :in spinning `frames .and ithe like because 'it .is :compulsory.that Ithese l:whorls have a lll-'shaped .groove fthereinand when .agroove iis lworn bythe cord or belt in Athe :base fthereof the `belt iis:not .properly .gripped :because the belt Vdrives the l.whorl and.spindle :on the principleof al gripping 'effectbeing given 4to theibelt l.on :account `vof the sloping faces .of the spindle whorl meeting.at .a common point. When the 'baseof the whorl has become "worn, Aasshown in 'Figure 31, ylit lisevident Athat the :gripping :will -not take`place -on'the -cord driving rthe spindle. It is-an -objeoto'f 4this.invention vto reface the Agroove in the spindle :Whoi'l ito againvprovide the spindle =whorl '-with a 'true fv-groove' therein.

Some of the objects of the invention having been stated, other 'objectswill appear as the description proceeds when taken in connection Withthe accompanying drawings, in which:-

Figure 1 is a top plan View of the apparatus; Figure 2 is an elevationof the apparatus and looking at the lower side of Figure 1;

Figure 3 is an elevation of the right-hand end of Figures 1 and 2;

Figure 4 is a transverse sectional View and taken along the line 4-4 inFigure 2;

Figure 5 is an enlarged detailed sectional view of the means for holdingthe spindle and ejecting the same.

Referring more speoically to the drawings the ing upon the direction ofrotation of member 38.

Member 32, has in the left-hand end thereof, shown in Figure 1, a cavitymade to conform to the shape ofthe tip 42 of the spindle so that the tip42 of the spindle can have rotary movement in the seat provided in theend of member 32.

Threadably secured in the base plate 10 is a bolt 60 with a lock nut 61thereon, the upper end of this nut being adapted to serve as a rest formember 29 when in operative position.

Mounted for sliding movement on shaft 26 is a member 44 having a slot 45in the base thereof penetrated by a screw 46 which is threadably mountedin base plate 10 for adjusting member 44 longitudinally of base plate10.

Member 44 has parallel portions 47 and 48 and in the upper ends'of theseportions 47 and 48 there is xedly secured a shaft 49 having a sleeve 50rotatably mounted thereon. Rotatably mounted on sleeve 50 is a toolholder 51 having a handle 52 threadably secured therein and adapted toengage sleeve 50 when the handle is screwed home to bind the sleeve 50and tool holder 51 together for unitary movement. This permits toolholder 51 and sleeve 50 to rotate together when the tool holder isrotated or partially rotated for presenting the tools to the whorl. Whenhandle 52 is unscrewed, tool holder 51 can be moved longitudinally ofsleeve 50 so the tools will be aligned with the groove in the whorl.Tool holder 51 has a plurality of tools removably mounted therein.

The tools 56 and 59 inclusive, are held in tool holder 51 by anysuitable means, such as set screws 56a, 57a, 58a and 59a.

The spindle whorl is provided with sloping faces 53 and 54 and is alsoshown as having a groove 55 worn therein by the cord or belt used fordriving the same in a textile machine and it is an object of thisinvention to cut down the faces 53 and 54 to provide a groove havingsloping faces terminating in a point and to cut away the portions ofsidewalls or faces of 53 and 54 to provide the new groove.

Tool 56 is provided, which is not a cutting tool but when the spindle isplaced in position as shown in the drawings the tool holder 51 is givena slight rotation, with handle 52 unscrewed and the tool 56 aligns andcenters the tool holder with relation to the spindle whorl. After thisalignment has taken place handle 40 is adjusted and the tool holder isgiven a slight additional rotation, and cutting tool 57 is presented tothe whorl to cut away the face 54 of the whorl and the tool may beshaped so as to cut away the base portions of this face to a greaterextent than the outer portions thereof. Next the tool holder is given aslight additional rotation to present cutting tool 58 to the spindlewhorl to cut away the face 53 of the spindle whorl, thus causing the twofaces to meet at a point in the base of the groove and thus obliteratingthe worn groove 55.

Next the tool holder 51 is given a slight additional rotation to presenttool 59 which cuts away a portion of both faces 53 and 54 and also thebase of the groove to dress and polish the same to provide a groovehaving uniform sidewalls meeting at a point in the base of the grooveand thus providing a new groove in the spindle whorl which, to allintents and purposes, will cause the spindle to operate as well as if anew whorl has been placed thereon.

Suitable set screws 46a and 4Gb are threadably secured in the lowerportion of member 44 and the ends of these screws contact base plate 10to hold the lower end of member 44 against the head of set screw 46. Itis evident that by loosening set screw 46 and tightening set screws 46aand 46h that the upper portion of member 44 and the cutting tool securedthereon, will be adjusted to a new position with relation to the whorl.

In operation, a spindle is placed into member 15 and member 29 is swungto the position shown in Figure 3 and then handle 40 of member 38 isalso swung to the position shown in Figure 3 to move the shaft 32against the tip 42 of the spindle to hold it in position where it can berotated while the successive aligning and cutting operations are carriedout. When these are carried out and it is desired to remove the spindlefrom the machine for the insertion of a new spindle therein, the handle40 is moved in a counter clock-wise direction in Figure 3 until thehandle engages a portion of member 29 and then further movement ofhandle 40 causes the member 29 to be also rotated in a counterclock-wise direction in Figure 3 to remove the entire apparatussupported by member 29, to the dotted line position shown in Figure 3and out of the path of a spindle while being inserted into the machineor removed from the machine. By loosening the handle 52 the tools can bealigned with the groove in the whorl, as some spindle tips 42 may havebeen previously ground several times, thus making this lower portion ofthe spindle shorter in some instances than in others.

In the drawings and specification there has been set forth a preferredembodiment of the invention, and although specific terms are emrploy-ed, they are used in a generic and descriptive sense only, and notfor purposes of limitation, the scope of the invention being set forthin the appended claims.

I claim:

1. Means for reforming worn grooves in Whorls for textile spindlescomprising revolving means for holding the spindle, an oscillating toolholder, an aligning tool mounted in the tool holder for aligning thewhorl while it revolves, a plurality of cutting tools mounted in thetool holder and adapted to be moved successively into cutting relationwith the whorl to reform the groove upon one oscillation of the toolholder.

2. Means for reforming the groove in a whorl L.:

of a textile spindle comprising revolving means for holding the spindle,pivoted means movable longitudinally of the spindle and having means forengaging the lower tip of the spindle for pressing the spindle into itsholding means, an oscillating tool holder having a plurality of toolsradially disposed therein and being adapted to be successively presentedto the whorl upon oscillation of the tool holder to successively operateupon the whorl while it is continuously revolving.

WALTER C. STEWART.

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